Sound Source Localization (SSL) has a wide application in speech separation, recognition and enhancement. Binaural sound source localization based on human spatial hearing mechanism is an important research field of SSL. The recent binaural SSL research is focused on the system robust against noise and reverberation. In order to improve the localization performance in degraded environment, this paper proposes an algorithm to adaptively select the ‘good’ sub-bands to compute the binaural localization cues. Firstly, sub-band Signal-Noise Ratio (SNR) is estimated based on the auto-correlation matrix of binaural sound signals. Then, Inter-aural Time Difference (ITD) is computed by adaptively selecting the sub-bands which have the high SNR. Since the ITD is calculated through the sub-bands which are less affected by the noise, the sound source azimuth is estimated more accurate. The simulation results show that compared to the conventional binaural SSL algorithm, the localization accuracy of the proposed algorithm has been improved significantly.
목차
Abstract 1. Introduction 2. The Structure of Binaural Sound Source Localization 3. Binaural Sound Source Localization based on Sub-band SNR Estimation 4. Simulation and Result Analysis 4.1. Simulation Condition 4.2. Simulation 1: Influence of Sub-band Number on Localization Performance 4.3. Simulation 2: Influence of Threshold Value on Localization Performance 4.4. Simulation 3: the Proposed Algorithm Performance in Reverberation Environment 5. Conclusion Acknowledgements References
키워드
Binaural sound source localizationSub-band signal-noise ratio estimationBinaural localization cues
저자
Zhou Lin, [ School of Information Science and Engineering, Southeast University, Nanjing, China ]
Zhao Xiao-Yan [ School of Information Science and Engineering, Southeast University, Nanjing, China ]
Cheng Xu [ School of Information Science and Engineering, Southeast University, Nanjing, China ]
Wu Zhen-Yang [ School of Information Science and Engineering, Southeast University, Nanjing, China ]
보안공학연구지원센터(IJMUE) [Science & Engineering Research Support Center, Republic of Korea(IJMUE)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Multimedia and Ubiquitous Engineering
간기
월간
pISSN
1975-0080
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Multimedia and Ubiquitous Engineering Vol.10 No.5